Cognomen กาญจนดิฐ (Kanjanadit 
, Kanchanadit , กาญจนดิฐ ) , around the globe, is a rare family name. The last name กาญจนดิฐ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, กาญจนดิฐ is the forename as well as the last name.